Insulator and fitting therefor



Feb. 12, 1929. 1,702,238

A. o. AUSTIN INSULATOR AND FITTING THEREFOR Filed March 1, 1925 2Sheets-Sheet 1 Fly. 5

l/VVENTO/f BY 7 i, a? M V VW 8- @M A TTOANE V Feb. 12, 1929.

A. O. AUSTIN INSULATOR AND FITTING THEREFOR 2 Sheets-Sheet 2 Filed March1, 1923 WIK IWW [NVENTOR BY I p lf

4 TYOR/VEY Patented Feb. 12, 1929.

UNITED STATES PATENT OFFICE.

ARTHUR O. AUSTIN, OF BARBERTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOTHE OHIO BRASS COMPANY, OF MANSFIELD, OHIO, A CORPORATION OF NEW JERSEY.

INSULATOR AND FITTING THEREFOR.

Application filed March 1, 1923.

This invention relates to insulators which are connected or supported bymembers which pass thru openings in the insulator proper, there usuallybeing two or more openings arranged at an angle to each other withinterposed dielectric material so that the connectors are interlinkedbut separated by the material of the dielectric member.

In insulators of this type, it is desirable to provide fittings whichcan be economically manufactured and quickly and easily connected andwhich will afford sufficient mechanical strength to withstand thestresses to which they are subjected.

The invention has for its object the provision of combined insulatorsand fittings which will meet the requirements outlined above, and whichshall be of improved construction and operation.

The invention is exemplified in the combinaticn and arrangement of partsshown in the accompanying drawings and described in the followingspecification, and it is more particularly pointed out in the appendedclaims.

In the drawings, Figure 1 is an elevation showing one embodiment of thepresent invention, the connector having a portion broken away.

Figure 2 is a section on line 22 of Fig- Figure 3 an elevation of aconnector plate.

Figure 4 is an edge view of the plate shown in Figure Figure is a viewsimilar to Figure 2, showing the clamping member applied to a connectorrod of a different cross section.

Figure 6 is an elevation of a modified construction.

Figure ure 6.

Figure 8 is an elevation of another modification.

Figure 9 is section on line 9-9 of Figure 8.

Figure 10 shows a diflerent form of nut lock that may be used in thecombination.

Figure 11 is a section on line 1111 of Figure 10.

n the form of the invention shown in Figure a connector for the links 13is provided similar to that shown in Figure 5 but in which the tongues16 project sufficiently a section on line 77 01" Fig- Serial No.621,969.

through the openings 17' to receive cotter pins 25 and provide againstany chance of the tongues being drawn from the openings. As shown inthis form the bolt may be provided with a squared opening in the plate15 and a lock washer 2G to prevent loosening of the nut.

In Figures 8 and 9 the tongues 16 are bent outwardly at their ends afterinsertion as shown at 27 and a lock tongue 28 for the nut is cut andbent outwardly from the clamping plate in position to be bent against aface of the nut when tightened up to prevent unscrewing.

In Figures 10 and 11 a different form of locking tongue for the nut isshown.

As illustrated in the drawings, the numeral 1O designates insulators ofthe general type in my prior Design Patent No. 56,262. These insulatorsare provided with perfora tions 11 and 12 arranged at right angles toone another thru which connector links 13 are threaded. The links 13have hooks 14 formed on the end thereof for engagements with holdingclamps by means of which the insulators are connected to one another.

It should be noted that the openings 11 and 12 are elongated in sectionin the direction of the length of the string, so as to permit thepassage of the hooks 14 thru the openings. The clamping members forconnecting the ends of the links 13 comprise duplicate plates 15, whichmay be stamped from sheet metal or may be forgings or castings as theconditions require. Each plate is provided with a pair of tongues 16bent at right angles to the plane of'the plate and with a pair ofopenings 17 for receiving the tongues 16 of the counter-part plate whenthe two are connected together. The tongues are positioned to enter thehooks 14 so that when the plates 15 are secured to one another by thebolt 18, the links 13 of adjacent insulators will be firmly connected.

It should be noted that each of the plates 15 is provided. a one edgewith a flange 19 which engages the outer legs of the hooks 14 andprevents straightening or unwinding of the hooks under the load of theinsulator. The flanges 19 are reinforced by supplemental-y flanges 20formed at the ends of the tongues 21 on each of the plates 15. The sidesof the plates 15 are provided with strengthening ribs 22 to addstiffness to the plates. The

links i3 may be circular in cross shown in Figure 2 or they ma haveother cross sectional shapes. Thecross sectional shape shown in Figure 5tound to be desirable in some instances. as there shown, the face of thelink 13 adjacent the insulator is rounded 23. This shape conforms to theopening in the insulator with Which the link contacts and hus gives agood hearing surface between the link insulator, The op- ;ositc face ofas is shown at 2%, so that a relati e bend can be'torincd for the hook14.1., ill conform closely to the tongue 6 the hook engages.

It will he notet e various parts of the connection ma cz-ipl'y made byautowhen coPple Led a strong connection is ment members 11) and a.strength of connectioi come all danger oi. unhen The plates 15 are exactonly one style of plate nee vorkrnen for installingavoiding danger ofiinpro it should also he noted t bolt 18 cannot be secured in placeuntil the holdin plates are properly fitted to one another. litter theparts connected, the 13 are held firmly in place in the grooves in thesi cs 01'? the insulators that the assembled 1 arts may be handled on.iout danger of displacement. A close coupliii of the insulator is alsoprovided, the parts require no relative movement in the direction of inelong h 0% the string}; during the coupling ope: tion.

I claim:

1. Means for connecting a pair of insulators comprising U shaped linksarranged to extend through the respective insulators, the ends of saidlinks being bent upon themselves to form hooks, a pair oi clampin platesarranged to bridge the s i bet eon the ends of said links, each platehavi a pair of projections thereon arranged to engage a hook or". eachof said links and having a pair of openings therein for receivingtheprojections of the complementary plate,a fastening ey overl ooks 14:.

section as under load.

In combination, a pair of insulators having longitudinally extendedgrooves and transverse open ngs therethru, said openings being elon atedin section in the direction of the l 3th ofsaid grooves U shapedconnecting links threaded thru said openings and positioned in said andhaving the ends thereof bent upon themselves to form hooks arranged inlane oi said links a pail of duplicate cl plates each having to suesthereon entering said hooks openings eccivitng the tongues 1 plate, abolt tor secursald plates n pc i ion on said hooks and lorid ing theSpat 3 between said links and abutment'meinbcrs on said plates forengaging the free ends oi said hooks to prevent unhending thereof underthe load of said iusulater. i

5. A connector to: an insulator comprising a supportii link adapted toeXtend thro Q h the interior of the insulator, conon the ends of saidlink having rigid, ha idly bent, free ends and a clamp for said hool 3having tongues extending throi gh the hooks and having abutments forinethe free ends of hooks to prevent i, vard bending thereof.

Means for connecting pair of insu= also a pair of openings for rec ivingtongues of the complementary plate means tor s curing saidplatestogether.

In testiinonv whereof I have sinned in name to this specification onthis Qlth day of ARTHUR- o. AUSTIN.

Fehruary,

